Results 91 to 100 of about 5,077 (206)

Age and genetic interrelation of ultramafic rocks, rodingites and chlorite-carbonate rocks of the Karabash massif (South Urals)

Литосфера, 2016
The age of ulramafic rocks of the Karabash massif (1720-1740 Ma), the minimum age of their protolith (1830 Ma), and the age of formation of rodingites (438.5 ± 15 Ma) and chlorite-carbonate rocks (404.4 ± 8.8 Ma) were determined on the basis of the ...
A. A. Krasnobaev, P. M. Valizer
doaj   +2 more sources

Vibrational Spectroscopy of Serpentinite Phase Transformations and Significance of OH Bands

Applied Sciences
Serpentine group minerals—comprising antigorite, chrysotile, and lizardite—are key indicators of the hydration of ultramafic rocks and the serpentinization process.
Ayşe Didem Kılıç, Ebubekir Sıddık Inanlı, Ismail Yıldırım   +2 more
doaj   +1 more source

Patti formation shales at Agbaja Plateau: A geochemical window into the provenance and tectonic setting history of the Southern Bida Basin, Nigeria

Journal of Nigerian Society of Physical Sciences
      Agbaja Plateau is one of the mesas that dotted the topography of north centrally located Bida Basin. Seventeen shale samples from the exposed Maastrichtian Patti Formation at Agbaja Plateau were analyzed using x-ray fluorescence (XRF) and
Olusola Ojo, Suraju Adepoju, Ayodeji Awe, Kehinde Alalade   +3 more
doaj   +1 more source

The protolith nature of diamondiferous metamorphic rocks of the Kokchetav Massif [PDF]

Acta Geologica Sinica - English Edition, 2019
Vladislav Shatsky, Emil Jagoutz, Olga Kozmenko, Alexey Ragozin, Sergei Skuzovatov, Nikolai Sobolev   +5 more
openaire   +1 more source

Zircon Stability Grids in Partial Melts from Different Protoliths [PDF]

Goldschmidt Abstracts, 2020
Fernando Bea, Pilar Montero, Jose Francisco Molina, Irene Morales, Aitor Cambeses   +4 more
openaire   +1 more source

Correlation analysis（N.ys）.tex

The correlation matrix between the refractive index of terahertz spectra and the content of each element in the ...
Tong Zhang (7879841), Zhiyuan Zheng (1628122), Mingrui Zhang1 (17707764), Ren Huang1 (17707776), Siqi Zhang1 (17707773)   +4 more
core   +1 more source

Petrography and geochemistry of biotite gneiss and amphibolite mined as aggregates and the environmental impact of quarrying operations in Logbadjeck, Cameroon

Discover Geoscience
Logbadjeck is situated in the northern edge of the Congo Craton, Nyong Series, Cameroon. This paper presents the petrographic and geochemical characteristics of biotite gneiss and amphibolite mined as aggregates and the environmental impact of quarrying ...
Anicet Feudjio Tiabou, Nkeng Enstein Forchenallah, Germain Marie Monespérance Mboudou, Cyrille Sigue, Jean Lavenir Ndema Mbongue, Emmanuel Billa Mundam   +5 more
doaj   +1 more source

Protolith Affiliation and Tectonometamorphic Evolution of the Gurla Mandhata Core Complex, NW Nepal Himalaya

, 2019
Migmatite-cored gneiss domes in the Himalaya are valuable structures that expose the mid-crust, allowing for the investigation of tectonic and structural processes governing the evolution of the Himalayan orogen.
Ahenda, Mark
core  

Linking protolith rocks to altered equivalents by combining unsupervised and supervised machine learning

, 2018
Metasomatism occurs when fluid interacts with rock to add, or remove, its chemical constituents; these processes form mineral deposits where economic element(s) are concentrated into small volumes of rock.
Shawn Hood (14739418), Matthew Cracknell (14734426), Gazley, MF (15672062)   +2 more
core  

FIG2.csv

TFe elemental content of protolith samples at different depths. Absorption coefficients at different frequencies versus depth.
Tong Zhang (7879841), Zhiyuan Zheng (1628122), Xiaodi Zheng 1 (17707779), Junfeng Shen2 (17707782), Mingrui Zhang1 (17707764), Ren Huang1 (17707776), Zili Zhang1 (17707788), Haochong Huang1 (17707785), Siqi Zhang1 (17707773)   +8 more
core   +1 more source